CN201731479U - Biomass fuels enhanced combustion boiler - Google Patents

Biomass fuels enhanced combustion boiler Download PDF

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Publication number
CN201731479U
CN201731479U CN2010201430767U CN201020143076U CN201731479U CN 201731479 U CN201731479 U CN 201731479U CN 2010201430767 U CN2010201430767 U CN 2010201430767U CN 201020143076 U CN201020143076 U CN 201020143076U CN 201731479 U CN201731479 U CN 201731479U
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CN
China
Prior art keywords
arch
biomass
boiler
biomass fuels
dome
Prior art date
Application number
CN2010201430767U
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Chinese (zh)
Inventor
王震坤
苏俊林
Original Assignee
王震坤
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Priority to CN2010201430767U priority Critical patent/CN201731479U/en
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Publication of CN201731479U publication Critical patent/CN201731479U/en

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Abstract

The utility model relates to a biomass fuels enhanced combustion boiler, which belongs to a biomass fuels combustion boiler, and comprises a hopper, an insulating layer, a fire-proof layer, a boiler cylinder, a chain fire grate and an ash hopper, wherein a hemisphere front arch is fixedly connected with the fire-proof layer, an inclined rear arch is fixedly connected with the fire-proof layer, the hemisphere front arch and the chain fire grate form a vaporizing combustion chamber, the inclined rear arch and the chain fire grate form a reburning chamber, and the hemisphere front arch and the inclined rear arc form a hearth orifice. The biomass fuels enhanced combustion boiler has the advantages that the structure is novel, a unique furnace arch is designed aiming at characteristics of biomass fuels, and the furnace arch guarantees complete burning of biomass boilers, excellent emission performance and high thermal efficiency.

Description

Biomass fuel overheavy firing boiler
Technical field
The utility model belongs to a kind of biomass fuel boiler.
Background technology
China's biomass energy resource is very abundant, and fully biomass energy is used in reasonable development, improves the using energy source environment and the human ecological environment of China, and the high-grade utilization that strengthens biomass energy has great importance.The mode that present biomass utilization has practicality most is a straw briquette fuel.Just because of this, the biomass molding fuel boiler that has occurred some forms both at home and abroad.But external type is only eaten flour and rice, needs to burn wooden fuel, and brings a high price, and is not suitable for China's national situation.The existing type of furnace of present China, a lot of weak points are arranged: do not meet the characteristic requirement of biomass molding fuel, cause burn deterioration, the thermal efficiency is low, and it is poor to conduct heat, the heat-transfer surface slagging scorification, heat-transfer surface often stops up, and pollutes greatly, and the lime-ash coking reaches with design parameter and departs from greatly.
Summary of the invention
The utility model provides a kind of biomass fuel overheavy firing boiler, to solve the problem of conventional boiler incompatibility biomass fuel combustion.The technical scheme that the utility model is taked is: comprise hopper, heat-insulation layer, flame retardant coating, drum, traveling-grate stoker, grey slag bucket, the dome-type face arch is fixedlyed connected with flame retardant coating, and the inclination rear arch is fixedlyed connected with flame retardant coating; Dome-type face arch and traveling-grate stoker constitute gasification combustion chamber, and inclination rear arch and traveling-grate stoker constitute burning chamber, and dome-type face arch and inclination rear arch have formed the burner hearth aditus laryngis.
Advantage of the present utility model is novel structure, fuel characteristic at biomass fuel, the inner dome-type face arch that adopts of the burner hearth of boiler, improved the burning condition of burner hearth, can make flame form eddy current in the face arch district, fuel gas has fully been mixed obtain completing combustion, reduced smoke discharge amount, easily igniting, ignition speed be fast, guarantee that biomass fuel is continual and steady, high effect cleaning ground burns efficiency of combustion height, noncoking slag.
Description of drawings
Fig. 1 is the utility model structural representation.
The specific embodiment
Hopper 1 is fixedlyed connected with the body of heater front portion, and heat-insulation layer 2 is fixedlyed connected with flame retardant coating 3, and drum 4 is positioned at upper of furnace body, and traveling-grate stoker 7 and grey slag bucket 8 lay respectively at bottom of furnace body, and dome-type face arch 5 is fixedlyed connected with flame retardant coating, and inclination rear arch 6 is fixedlyed connected with flame retardant coating; Dome-type face arch and traveling-grate stoker 7 constitute gasification combustion chamber 9, and inclination rear arch and traveling-grate stoker 7 constitute burning chamber 10, and dome-type face arch 5 has formed burner hearth aditus laryngis 11 with inclination rear arch 6.
The most important member of boiler furnace is the chimney arch of boiler, and the shape of chimney arch and size are the key problem in technology that influences boiler combustion, coking and the thermal efficiency.Biomass intensified burning boiler front portion is provided with hopper 1.Bulk or particulate biomass shaped fuel are sent into the front portion of mechanization traveling-grate stoker 7 thus.The fresh fuel of traveling-grate stoker front portion is subjected to the double action of the radiation and the convection current of anterior hemisphere chimney arch 5, has experienced dry, the dried ablaze process of sauting.The middle part of fire grate 7 has formed the gasification, and combustion district under the effect of dome-type arch 5.Overwhelming majority biomass fuel is distinguished the volatilization gasification at this and is formed combustible gas, makes combustible gas burn and be equipped with sufficient oxidant air from fire grate 7 middle parts.Dome-type face arch 5 is vitals of main combustion chamber.It and fire grate have formed gasification combustion chamber, and the flame of gasification, and combustion forms strong eddy current in hemisphere, make unburned combustible component fully mix with oxidant, make burning strengthen greatly, sufficient combustion and cleaning.Arrange inclination rear arch 6 at fire grate 7 rear portions, the high-temperature flue gas after the burning forms a rough air again and helps not burning further burning of combustible by the burner hearth aditus laryngis 11 that dome-type face arch 5 and rear arch 6 form in this aditus laryngis.High-temperature flue gas is at dome-type face arch 5, and inclination rear arch 6 tops and boiler water wall carry out entering convection heating surface again behind the radiation heat transfer and carry out heat convection.The lime-ash of fire grate 7 afterbodys falls into grey slag bucket 8 at last.

Claims (4)

1. a biomass fuel overheavy firing boiler comprises hopper, heat-insulation layer, flame retardant coating, drum, traveling-grate stoker, grey slag bucket, and it is characterized in that: the dome-type face arch is fixedlyed connected with flame retardant coating, and the inclination rear arch is fixedlyed connected with flame retardant coating.
2. biomass fuel overheavy firing boiler according to claim 1 is characterized in that: dome-type face arch and traveling-grate stoker constitute gasification combustion chamber.
3. biomass fuel overheavy firing boiler according to claim 1 is characterized in that: inclination rear arch and traveling-grate stoker constitute burning chamber.
4. biomass fuel overheavy firing boiler according to claim 1 is characterized in that: dome-type face arch and inclination rear arch have formed the burner hearth aditus laryngis.
CN2010201430767U 2010-03-20 2010-03-20 Biomass fuels enhanced combustion boiler CN201731479U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010201430767U CN201731479U (en) 2010-03-20 2010-03-20 Biomass fuels enhanced combustion boiler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010201430767U CN201731479U (en) 2010-03-20 2010-03-20 Biomass fuels enhanced combustion boiler

Publications (1)

Publication Number Publication Date
CN201731479U true CN201731479U (en) 2011-02-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010201430767U CN201731479U (en) 2010-03-20 2010-03-20 Biomass fuels enhanced combustion boiler

Country Status (1)

Country Link
CN (1) CN201731479U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102269403A (en) * 2011-07-06 2011-12-07 农业部规划设计研究院 Straw fuel suspension combustion furnace
CN102330995A (en) * 2011-10-08 2012-01-25 张家港市威孚热能科技有限公司 Composite arch structure in biomass fuel chain boiler
CN102818362A (en) * 2011-06-08 2012-12-12 刘伟义 Chain type environment-friendly double-drum biomass particle gasifying burning hot-water boiler
CN103925611A (en) * 2014-04-30 2014-07-16 江苏维德锅炉有限公司 Seven-segment combustion furnace chamber structure choking nitrogen oxide generation
CN104764039A (en) * 2015-04-27 2015-07-08 吉林大学 Boiler arch of small biomass boiler

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102818362A (en) * 2011-06-08 2012-12-12 刘伟义 Chain type environment-friendly double-drum biomass particle gasifying burning hot-water boiler
CN102818362B (en) * 2011-06-08 2014-07-09 刘伟义 Chain type environment-friendly double-drum biomass particle gasifying burning hot-water boiler
CN102269403A (en) * 2011-07-06 2011-12-07 农业部规划设计研究院 Straw fuel suspension combustion furnace
CN102330995A (en) * 2011-10-08 2012-01-25 张家港市威孚热能科技有限公司 Composite arch structure in biomass fuel chain boiler
CN102330995B (en) * 2011-10-08 2013-02-27 张家港市威孚热能科技有限公司 Composite arch structure in biomass fuel chain boiler
CN103925611A (en) * 2014-04-30 2014-07-16 江苏维德锅炉有限公司 Seven-segment combustion furnace chamber structure choking nitrogen oxide generation
CN104764039A (en) * 2015-04-27 2015-07-08 吉林大学 Boiler arch of small biomass boiler
CN104764039B (en) * 2015-04-27 2017-05-10 吉林大学 Boiler arch of small biomass boiler

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C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110202

Termination date: 20130320